Portable turbidimeter



FIG. 1 is a front, left, top-side perspective view of the portable turbidimeter showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a back view thereof. 

The ornamental design for a portable turbidimeter, as shown and described. 